Pleated blind having positioning function

ABSTRACT

A pleated blind includes a blind body having a plurality of pleated portions each having a pleated edge, and a limit cord secured to the pleated edges of the pleated portions of the blind body. When the pleated portions are moved, the maximum distance between any two adjacent pleated edges of the pleated portions is limited by the limit cord, so that the open distance of each of the pleated portions is limited by the limit cord to reach a determined value. Thus, each of the pleated portions will not be opened excessively due to improper operation by a user, thereby preventing either one of the pleated portions from being deformed or distorted due to an overload so as to enhance the outer appearance of the pleated blind.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a pleated blind, and more particularlyto a pleated blind having a positioning function.

2. Description of the Related Art

A conventional pleated blind in accordance with the prior art shown inFIG. 6 comprises a headrail 7, a blind body 6 mounted on the headrail 7and having a plurality of pleated portions 61, and a lift cord 8extended through the headrail 7 and each of the pleated portions 61 ofthe blind body 6 to control upward and downward movement of the blindbody 6. Each of the pleated portions 61 of the blind body 6 has athrough hole 62 to allow passage of the lift cord 8. However, when auser exerts an excessive force on the lift cord 8, some of the pleatedportions 61 of the blind body 6 are opened excessively due to improperoperation of the lift cord 8 by the user, so that the pleated portions61 of the blind body 6 are easily deformed or distorted due to anoverload as shown in FIG. 6, thereby decreasing the outer appearance ofthe pleated blind.

SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a pleatedblind, comprising a blind body having a plurality of pleated portionseach having a pleated edge, and a limit cord secured to the pleatededges of some of the pleated portions of the blind body to limit adistance between the pleated edges of the pleated portions of the blindbody.

The primary objective of the present invention is to provide a pleatedblind having a positioning function so that the shape of each of thepleated portions of the blind body is not deformed.

Another objective of the present invention is to provide a pleatedblind, wherein when the pleated portions of the blind body are movedupward and downward by operation of the lift cord, the maximum distancebetween any two adjacent pleated edges of the pleated portions of theblind body is limited by the limit cord, so that the open distance ofeach of the pleated portions of the blind body is limited by the limitcord to reach a determined value.

A further objective of the present invention is to provide a pleatedblind, wherein each of the pleated portions of the blind body will notbe opened excessively due to improper operation of the lift cord by auser, thereby preventing either one of the pleated portions of the blindbody from being deformed or distorted due to an overload so as toenhance the outer appearance of the pleated blind.

A further objective of the present invention is to provide a pleatedblind, wherein the limit cord is made easily and has an inexpensiveprice, thereby greatly decreasing cost of fabrication.

Further benefits and advantages of the present invention will becomeapparent after a careful reading of the detailed description withappropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a pleated blind in accordance with thepreferred embodiment of the present invention.

FIG. 1A is a locally enlarged view of the pleated blind as shown in FIG.1.

FIG. 1B is a locally enlarged view of the pleated blind as shown in FIG.1.

FIG. 2 is a perspective view showing a manufacturing process of thepleated blind as shown in FIG. 1.

FIG. 3 is a perspective view of a pleated blind in accordance withanother preferred embodiment of the present invention.

FIG. 4 is a partially side plan view of a pleated blind in accordancewith another preferred embodiment of the present invention.

FIG. 5 is a perspective view of a pleated blind in accordance withanother preferred embodiment of the present invention.

FIG. 6 is a perspective view of a conventional pleated blind inaccordance with the prior art.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIG. 1, a pleated blind inaccordance with the preferred embodiment of the present inventioncomprises a headrail 4, a blind body 1 mounted on the headrail 4 andhaving a plurality of pleated portions 11 each having a pleated edge111, a lift cord 3 extended through the headrail 4 and each of thepleated portions 11 of the blind body 1 to control upward and downwardmovement of the blind body 1, and a limit cord 2 secured to the pleatededges 111 of some of the pleated portions 11 of the blind body 1 tolimit a distance between the pleated edges 111 of the pleated portions11 of the blind body 1.

Preferably, the limit cord 2 is secured to the pleated edge 111 of eachof the pleated portions 11 of the blind body 1 to limit a distancebetween any two adjacent pleated edges 111 of the pleated portions 11 ofthe blind body 1.

In addition, the pleated edge 111 of an uppermost one of the pleatedportions 11 of the blind body 1 is attached to the headrail 4 by thelimit cord 2.

When in use, when the pleated portions 11 of the blind body 1 are movedupward and downward by operation of the lift cord 3, the maximumdistance between any two adjacent pleated edges 111 of the pleatedportions 111 of the blind body 1 is limited by the limit cord 2, so thatthe open distance of each of the pleated portions 11 of the blind body 1is limited by the limit cord 2 to reach a determined value.

Thus, each of the pleated portions 11 of the blind body 1 will not beopened excessively due to improper operation of the lift cord 3 by auser, thereby preventing either one of the pleated portions 11 of theblind body 1 from being deformed or distorted due to an overload.

As shown in FIG. 1, the pleated edge 111 of each of the pleated portions11 of the blind body 1 is serially attached to the limit cord 2, and thepleated edges 111 of the pleated portions 11 of the blind body 1 areequally spaced from each other by restriction of the limit cord 2.

As shown in FIG. 1A, the pleated edge 111 of each of the pleatedportions 11 of the blind body 1 is attached to the limit cord 2 bysewing.

As shown in FIG. 1B, the pleated edge 111 of each of the pleatedportions 11 of the blind body 1 is attached to the limit cord 2 by ahigh frequency melting process.

Alternatively, the pleated edge 111 of each of the pleated portions 11of the blind body 1 is attached to the limit cord 2 by an adhesive.

As shown in FIG. 2, the blind body 1 is supported by a molding die 5 tofacilitate the high frequency melting process of the pleated edge 111 ofeach of the pleated portions 11 of the blind body 1.

As shown in FIG. 3, the pleated edge 111 of each of the pleated portions11 of the blind body 1 is serially attached to the limit cord 2, and thepleated edges 111 of the pleated portions 11 of the blind body 1 arespaced from each other with different distances by restriction of thelimit cord 2, so that the pleated portions 11 of the blind body 1 havedifferent pleated angles.

In addition, the limit cord 2 is serially secured to the pleated edge111 of each of the pleated portions 11 of the blind body 1 in amulti-state manner.

As shown in FIG. 4, the limit cord 2 is extended into a side of each ofthe pleated portions 11 of the blind body 1 to reinforce the strengthbetween the limit cord 2 and the pleated edge 111 of each of the pleatedportions 11 of the blind body 1.

As shown in FIG. 5, the pleated portions 11 of the blind body 1 aredivided into several intervals 112 each having a single pleated edge 111serially attached to the limit cord 2. The intervals 112 of the blindbody 1 are equally spaced from each other by restriction of the limitcord 2, and the open distance of each of the pleated portions 11 in eachof the intervals 112 of the blind body 1 is limited by the limit cord 2to reach a determined value.

Accordingly, when the pleated portions 11 of the blind body 1 are movedupward and downward by operation of the lift cord 3, the maximumdistance between any two adjacent pleated edges 111 of the pleatedportions 11 of the blind body 1 is limited by the limit cord 2, so thatthe open distance of each of the pleated portions 11 of the blind body 1is limited by the limit cord 2 to reach a determined value. In addition,each of the pleated portions 11 of the blind body 1 will not be openedexcessively due to improper operation of the lift cord 3 by a user,thereby preventing either one of the pleated portions 11 of the blindbody 1 from being deformed or distorted due to an overload so as toenhance the outer appearance of the pleated blind. Further, the limitcord 2 is made easily and has an inexpensive price, thereby greatlydecreasing cost of fabrication.

Although the invention has been explained in relation to its preferredembodiment(s) as mentioned above, it is to be understood that many otherpossible modifications and variations can be made without departing fromthe scope of the present invention. It is, therefore, contemplated thatthe appended claim or claims will cover such modifications andvariations that fall within the true scope of the invention.

1. A pleated blind, comprising: a blind body having a plurality ofpleated portions each having a pleated edge; a limit cord secured to thepleated edges of some of the pleated portions of the blind body to limita distance between the pleated edges of the pleated portions of theblind body.
 2. The pleated blind in accordance with claim 1, wherein thelimit cord is secured to the pleated edge of each of the pleatedportions of the blind body to limit a distance between any two adjacentpleated edges of the pleated portions of the blind body.
 3. The pleatedblind in accordance with claim 1, wherein the blind body is mounted on aheadrail, and the pleated edge of an uppermost one of the pleatedportions of the blind body is attached to the headrail by the limitcord.
 4. The pleated blind in accordance with claim 1, wherein a maximumdistance between any two adjacent pleated edges of the pleated portionsof the blind body is limited by the limit cord, so that an open distanceof each of the pleated portions of the blind body is limited by thelimit cord to reach a determined value.
 5. The pleated blind inaccordance with claim 1, wherein the pleated edge of each of the pleatedportions of the blind body is serially attached to the limit cord. 6.The pleated blind in accordance with claim 1, wherein the pleated edgesof the pleated portions of the blind body are equally spaced from eachother by restriction of the limit cord.
 7. The pleated blind inaccordance with claim 1, wherein the pleated edge of each of the pleatedportions of the blind body is attached to the limit cord by sewing. 8.The pleated blind in accordance with claim 1, wherein the pleated edgeof each of the pleated portions of the blind body is attached to thelimit cord by a high frequency melting process.
 9. The pleated blind inaccordance with claim 1, wherein the limit cord is serially secured tothe pleated edge of each of the pleated portions of the blind body in amulti-state manner.
 10. The pleated blind in accordance with claim 1,wherein the limit cord is extended into a side of each of the pleatedportions of the blind body to reinforce a strength between the limitcord and the pleated edge of each of the pleated portions of the blindbody.
 11. The pleated blind in accordance with claim 1, wherein thepleated portions of the blind body are divided into several intervalseach having a single pleated edge serially attached to the limit cord.12. The pleated blind in accordance with claim 11, wherein the intervalsof the blind body are equally spaced from each other by restriction ofthe limit cord.
 13. The pleated blind in accordance with claim 11,wherein an open distance of each of the pleated portions in each of theintervals of the blind body is limited by the limit cord to reach adetermined value.
 14. The pleated blind in accordance with claim 1,wherein the pleated edge of each of the pleated portions of the blindbody is attached to the limit cord by an adhesive.